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History forces and the unsteady wake of a cylinder

Published online by Cambridge University Press:  25 August 1999

J. R. CHAPLIN
J. R. CHAPLIN
Affiliation:
Department of Civil Engineering, City University, London EC1V 0HB, UK
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Abstract

History forces on a stationary cylinder in arbitrary unsteady rectilinear flow are calculated by means of a model based on the asymptotic properties of the steady-state wake. The results capture many features found in numerical solutions of the Navier–Stokes equation for the same flows, though quantitative agreement deteriorates as the Reynolds number increases over the range 2 to 40. The cases studied are the impulsive start, stop, and reverse, and oscillatory flow.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 393 , 25 August 1999 , pp. 99 - 121
Copyright
© 1999 Cambridge University Press

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